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- Modbus Protocol Conversion: Converts between Modbus TCP and Modbus RTU/ASCII seamlessly.
- Remote Monitoring Function: Supports automatic and manual monitoring modes for serial devices.
- *Automatic Mode:* Monitors a pulse signal from the serial device every 30 seconds; if no pulse is detected, the relay activates automatically.
- *Manual Mode:* Relay can be triggered manually via the web interface to restart or control the connected device.
- Relay Control: Two independent relays (NC, COM, NO) with adjustable latch time (1–255 units, 100 ms per unit).
- Web-Based Configuration: Full configuration and monitoring through an integrated HTTP web server.
- Virtual COM Port Support: Provides virtual COM drivers for Windows 98 through Windows 10, supporting Server, Client, and UDP modes.
- Network Security: Allows configuration of up to 8 authorized host IP addresses to restrict access.
- High Connectivity: Supports up to 16 simultaneous TCP client connections in server mode.
- Auto-MDIX Ethernet Port: Automatically detects and corrects cable crossover, supporting both straight-through and crossover cables.
- Watchdog and Power Detection: Built-in watchdog timer and power input detection circuit ensure system stability and automatic recovery from faults.
- Surge and ESD Protection: ±15 kV ESD protection on serial interfaces; surge, overcurrent, and overvoltage protection on RS-422/485 lines.
- Heartbeat Function: Periodic TCP heartbeat (port 5300) every 5 seconds to verify network connectivity.
- Firmware Upgradeable: Supports firmware updates via LAN.
- Dual Power Input: Selectable between screw terminal and DC jack input.
- LED Indicators: Power, Link, UART RX/TX, Digital Input (DI), and Relay Output (DO) status LEDs.
- Auto Reconnection: Automatically reconnects after power or Ethernet failure.
- Factory Reset: External DIP switch allows quick restoration to factory defaults.
- Remote Monitoring Function: Supports automatic and manual monitoring modes for serial devices.
- *Automatic Mode:* Monitors a pulse signal from the serial device every 30 seconds; if no pulse is detected, the relay activates automatically.
- *Manual Mode:* Relay can be triggered manually via the web interface to restart or control the connected device.
- Relay Control: Two independent relays (NC, COM, NO) with adjustable latch time (1–255 units, 100 ms per unit).
- Web-Based Configuration: Full configuration and monitoring through an integrated HTTP web server.
- Virtual COM Port Support: Provides virtual COM drivers for Windows 98 through Windows 10, supporting Server, Client, and UDP modes.
- Network Security: Allows configuration of up to 8 authorized host IP addresses to restrict access.
- High Connectivity: Supports up to 16 simultaneous TCP client connections in server mode.
- Auto-MDIX Ethernet Port: Automatically detects and corrects cable crossover, supporting both straight-through and crossover cables.
- Watchdog and Power Detection: Built-in watchdog timer and power input detection circuit ensure system stability and automatic recovery from faults.
- Surge and ESD Protection: ±15 kV ESD protection on serial interfaces; surge, overcurrent, and overvoltage protection on RS-422/485 lines.
- Heartbeat Function: Periodic TCP heartbeat (port 5300) every 5 seconds to verify network connectivity.
- Firmware Upgradeable: Supports firmware updates via LAN.
- Dual Power Input: Selectable between screw terminal and DC jack input.
- LED Indicators: Power, Link, UART RX/TX, Digital Input (DI), and Relay Output (DO) status LEDs.
- Auto Reconnection: Automatically reconnects after power or Ethernet failure.
- Factory Reset: External DIP switch allows quick restoration to factory defaults.
1. Product Overview
Product Name: TRP-C37MA
Model: TRP-C37MA
Series: TRP-C37X Industrial Ethernet Serial Gateway Series
Article Number: TRP-C37MA
Manufacturer: Trycom Technology Co., Ltd.
Manufacturer Address: No. 35, Zhongxing Rd., Guishan Township, Taoyuan County 333, Taiwan
Website: [www.trycom.com.tw](http://www.trycom.com.tw)
Telephone: +886-3-350-3351
Fax: +886-3-350-3352
The Trycom TRP-C37MA is an industrial-grade Modbus TCP to RTU/ASCII gateway with integrated remote monitoring and relay control capabilities. It is designed to bridge Ethernet-based Modbus TCP networks with serial Modbus RTU or ASCII devices, providing flexible connectivity, remote management, and automatic device monitoring functions. The unit supports RS-232, RS-422, and RS-485 interfaces, features dual power input, and includes surge, overcurrent, and overvoltage protection for reliable operation in harsh industrial environments.
2. Key Features
- Modbus Protocol Conversion: Converts between Modbus TCP and Modbus RTU/ASCII seamlessly.
- Remote Monitoring Function: Supports automatic and manual monitoring modes for serial devices.
- *Automatic Mode:* Monitors a pulse signal from the serial device every 30 seconds; if no pulse is detected, the relay activates automatically.
- *Manual Mode:* Relay can be triggered manually via the web interface to restart or control the connected device.
- Relay Control: Two independent relays (NC, COM, NO) with adjustable latch time (1–255 units, 100 ms per unit).
- Web-Based Configuration: Full configuration and monitoring through an integrated HTTP web server.
- Virtual COM Port Support: Provides virtual COM drivers for Windows 98 through Windows 10, supporting Server, Client, and UDP modes.
- Network Security: Allows configuration of up to 8 authorized host IP addresses to restrict access.
- High Connectivity: Supports up to 16 simultaneous TCP client connections in server mode.
- Auto-MDIX Ethernet Port: Automatically detects and corrects cable crossover, supporting both straight-through and crossover cables.
- Watchdog and Power Detection: Built-in watchdog timer and power input detection circuit ensure system stability and automatic recovery from faults.
- Surge and ESD Protection: ±15 kV ESD protection on serial interfaces; surge, overcurrent, and overvoltage protection on RS-422/485 lines.
- Heartbeat Function: Periodic TCP heartbeat (port 5300) every 5 seconds to verify network connectivity.
- Firmware Upgradeable: Supports firmware updates via LAN.
- Dual Power Input: Selectable between screw terminal and DC jack input.
- LED Indicators: Power, Link, UART RX/TX, Digital Input (DI), and Relay Output (DO) status LEDs.
- Auto Reconnection: Automatically reconnects after power or Ethernet failure.
- Factory Reset: External DIP switch allows quick restoration to factory defaults.
3. Technical Specifications
- Power Input Voltage: DC +10 V to +30 V
- Power Consumption: 12 V / 140 mA
- Ethernet Interface:
- 10/100 Mbps Auto-detecting
- Auto-MDIX support
- Protocols: TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP
- Serial Interfaces:
- RS-232: TX, RX, RTS, CTS, DTR, DSR, DCD, GND
- RS-422: Differential 4-wire full-duplex (TX+, TX−, RX+, RX−)
- RS-485: Differential 2-wire half-duplex (DATA+, DATA−)
- Protection: ±15 kV ESD; surge, overcurrent, and overvoltage protection
- Connector: DB-9 male for RS-232; plug-in screw terminal for RS-422/485 (AWG #12–30)
- Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 921600 Kbps
- Data Bits: 5, 6, 7, or 8
- Parity: None, Even, Odd
- Stop Bits: 1, 1.5, or 2
- Relay Output:
- Two independent relays (NC, COM, NO)
- Contact capacity: AC 125 V / 0.5 A, DC 30 V / 2 A, DC 110 V / 0.3 A
- Adjustable latch time: 1–255 (100 ms per unit)
- Digital Input:
- Connector: D-type 9-pin female
- Effective voltage: ±4–30 V DC
- Counter range: 0–65535
- Maximum TCP Connections: 16 simultaneous clients
- UID Range (TCP Slave to Serial Master): 00–FF
- Operating Temperature: −10 °C to +65 °C
- Humidity: 0–90% non-condensing
- Dimensions: 151 mm (L) × 75 mm (W) × 26 mm (H)
- Weight: 395 g (with packaging)
4. Functionality
The TRP-C37MA functions as a gateway between Ethernet-based Modbus TCP networks and serial Modbus RTU/ASCII devices. It can operate in several modes:
- Direct IP Mode: Provides direct TCP/IP communication between Ethernet and serial devices.
- Virtual COM Mode: Creates a virtual serial port on a PC, mapping TCP/IP data to the serial interface.
- Paired Mode (Bridge Mode): Two TRP-C37MA units can form a transparent serial bridge over Ethernet.
Use Cases and Applications:
- Industrial automation systems integrating legacy serial Modbus devices into Ethernet networks.
- SCADA systems requiring remote access to Modbus RTU/ASCII sensors or controllers.
- Remote device monitoring and automatic restart of serial equipment.
- Multi-client data acquisition from a single serial device.
- Integration with Modscan32, Modbus Poll, CAS Modbus Scanner, and other Modbus utilities.
Compatibility:
- Fully compatible with Modbus TCP, Modbus RTU, and Modbus ASCII protocols.
- Works with Windows operating systems (98 through 10) via virtual COM drivers.
- Supports Ethernet and TCP/IP standards for seamless integration with existing networks.
5. Components & Accessories
Included Components:
- TRP-C37MA main unit
- User manual
- Software CD containing TRP-C37X DSM utility, Virtual COM driver, and TRPCOM test utility
Connectors:
- Ethernet Port: RJ45 (Auto-MDIX, 10/100 Mbps)
- RS-232 Port: DB-9 male connector
- RS-422/485 Port: Plug-in screw terminal block
- Digital I/O: D-sub 9-pin female connector
- Power Input: Screw terminal and 5.5 × 2.1 mm DC jack
Optional Accessories:
- External power adapter (DC 12–24 V)
- DIN-rail mounting kit (if applicable)
- Ethernet cable (straight or crossover)
6. Installation & Setup
Requirements:
- DC power supply (10–30 V)
- Ethernet connection to LAN or router
- Serial connection to Modbus RTU/ASCII device
Mounting Options:
- Desktop or panel installation
- Screw terminal wiring for industrial environments
Setup Steps:
1. Connect power to the DC jack or screw terminal. The PWR LED will blink when powered.
2. Connect the Ethernet cable to the LAN port. The LINK LED indicates network activity.
3. Connect the serial device via RS-232, RS-422, or RS-485 interface.
4. Configure the device using either:
- TRP-C37X DSM Utility: For network discovery, configuration, and firmware updates.
- Web-Based Utility: Access via browser using the device IP address (default 192.168.1.1).
5. Adjust DIP switches for desired mode:
- OFF/OFF: Direct IP mode (RTU)
- OFF/ON: Direct IP mode (ASCII)
- ON/OFF: Virtual COM or Paired mode
- ON/ON: Factory reset
LED Indicators:
- PWR: System ready (blinking)
- LINK: Ethernet connection active
- TX/RX: Serial data transmission/reception
- DI: Digital input status
- DO: Relay activation status
7. Performance & Capabilities
- Speed: Up to 921.6 Kbps serial communication rate
- Network Throughput: 10/100 Mbps Ethernet auto-detecting
- Connection Capacity: Up to 16 simultaneous TCP clients
- Relay Response: Adjustable from 100 ms to 25.5 seconds
- Heartbeat Interval: 5 seconds (TCP port 5300)
- Reliability:
- Auto-reconnect after power or network failure
- Watchdog timer for system recovery
- Power detection circuit prevents boot failure under unstable voltage
- Limitations:
- Maximum of 8 authorized host IPs for security
- Relay contact limited to 0.5 A at 125 V AC or 2 A at 30 V DC
8. Standards & Compliance
- Communication Standards:
- IEEE 802.3 (Ethernet 10/100 Mbps)
- Modbus TCP, Modbus RTU, Modbus ASCII
- TCP/IP, UDP, ICMP, ARP, DHCP, HTTP, Telnet protocols
- Electrical Protection:
- ±15 kV ESD protection on serial ports
- Surge, overcurrent, and overvoltage protection on RS-422/485 lines
- Environmental Standards:
- Operating temperature: −10 °C to +65 °C
- Humidity: 0–90% non-condensing
- Safety and Reliability:
- Industrial-grade design for continuous operation
- External watchdog and power detection circuits for fault recovery
9. Additional Information
Warranty & Support:
Trycom Technology provides standard product warranty and technical support for the TRP-C37MA. Firmware updates and configuration utilities are available through the manufacturer’s website.
Maintenance:
- Periodically check power and network connections.
- Use surge-protected power sources in industrial environments.
- Firmware can be updated via LAN using the DSM utility.
- Factory reset can be performed via DIP switches (1 and 2 ON/ON).
Software Tools:
- TRP-C37X DSM Utility: Device discovery, configuration, and firmware upgrade.
- Virtual COM Utility (VCOMM): Creates virtual serial ports for Windows systems.
- TRPCOM Utility: Diagnostic and loopback testing for RS-232/422/485 interfaces.
Firmware Updates:
Firmware can be upgraded through the LAN interface using the DSM utility. The process allows saving and restoring configuration files to EEPROM or external log files.
Comparison with TRP-C37A:
- TRP-C37A: Basic serial device server for TCP-to-serial data transmission only.
- TRP-C37MA: Enhanced model with Modbus protocol analysis, remote monitoring, and relay control functions.
Summary
The Trycom TRP-C37MA is a robust, feature-rich Modbus TCP to RTU/ASCII gateway engineered for industrial automation and remote monitoring applications. It bridges Ethernet and serial communication seamlessly, supports multiple operation modes, and provides advanced management through web and software utilities. With its wide power input range, industrial-grade protection, and flexible configuration options, the TRP-C37MA ensures reliable, secure, and efficient integration of serial Modbus devices into modern Ethernet-based control systems.
Product Name: TRP-C37MA
Model: TRP-C37MA
Series: TRP-C37X Industrial Ethernet Serial Gateway Series
Article Number: TRP-C37MA
Manufacturer: Trycom Technology Co., Ltd.
Manufacturer Address: No. 35, Zhongxing Rd., Guishan Township, Taoyuan County 333, Taiwan
Website: [www.trycom.com.tw](http://www.trycom.com.tw)
Telephone: +886-3-350-3351
Fax: +886-3-350-3352
The Trycom TRP-C37MA is an industrial-grade Modbus TCP to RTU/ASCII gateway with integrated remote monitoring and relay control capabilities. It is designed to bridge Ethernet-based Modbus TCP networks with serial Modbus RTU or ASCII devices, providing flexible connectivity, remote management, and automatic device monitoring functions. The unit supports RS-232, RS-422, and RS-485 interfaces, features dual power input, and includes surge, overcurrent, and overvoltage protection for reliable operation in harsh industrial environments.
2. Key Features
- Modbus Protocol Conversion: Converts between Modbus TCP and Modbus RTU/ASCII seamlessly.
- Remote Monitoring Function: Supports automatic and manual monitoring modes for serial devices.
- *Automatic Mode:* Monitors a pulse signal from the serial device every 30 seconds; if no pulse is detected, the relay activates automatically.
- *Manual Mode:* Relay can be triggered manually via the web interface to restart or control the connected device.
- Relay Control: Two independent relays (NC, COM, NO) with adjustable latch time (1–255 units, 100 ms per unit).
- Web-Based Configuration: Full configuration and monitoring through an integrated HTTP web server.
- Virtual COM Port Support: Provides virtual COM drivers for Windows 98 through Windows 10, supporting Server, Client, and UDP modes.
- Network Security: Allows configuration of up to 8 authorized host IP addresses to restrict access.
- High Connectivity: Supports up to 16 simultaneous TCP client connections in server mode.
- Auto-MDIX Ethernet Port: Automatically detects and corrects cable crossover, supporting both straight-through and crossover cables.
- Watchdog and Power Detection: Built-in watchdog timer and power input detection circuit ensure system stability and automatic recovery from faults.
- Surge and ESD Protection: ±15 kV ESD protection on serial interfaces; surge, overcurrent, and overvoltage protection on RS-422/485 lines.
- Heartbeat Function: Periodic TCP heartbeat (port 5300) every 5 seconds to verify network connectivity.
- Firmware Upgradeable: Supports firmware updates via LAN.
- Dual Power Input: Selectable between screw terminal and DC jack input.
- LED Indicators: Power, Link, UART RX/TX, Digital Input (DI), and Relay Output (DO) status LEDs.
- Auto Reconnection: Automatically reconnects after power or Ethernet failure.
- Factory Reset: External DIP switch allows quick restoration to factory defaults.
3. Technical Specifications
- Power Input Voltage: DC +10 V to +30 V
- Power Consumption: 12 V / 140 mA
- Ethernet Interface:
- 10/100 Mbps Auto-detecting
- Auto-MDIX support
- Protocols: TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP
- Serial Interfaces:
- RS-232: TX, RX, RTS, CTS, DTR, DSR, DCD, GND
- RS-422: Differential 4-wire full-duplex (TX+, TX−, RX+, RX−)
- RS-485: Differential 2-wire half-duplex (DATA+, DATA−)
- Protection: ±15 kV ESD; surge, overcurrent, and overvoltage protection
- Connector: DB-9 male for RS-232; plug-in screw terminal for RS-422/485 (AWG #12–30)
- Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 921600 Kbps
- Data Bits: 5, 6, 7, or 8
- Parity: None, Even, Odd
- Stop Bits: 1, 1.5, or 2
- Relay Output:
- Two independent relays (NC, COM, NO)
- Contact capacity: AC 125 V / 0.5 A, DC 30 V / 2 A, DC 110 V / 0.3 A
- Adjustable latch time: 1–255 (100 ms per unit)
- Digital Input:
- Connector: D-type 9-pin female
- Effective voltage: ±4–30 V DC
- Counter range: 0–65535
- Maximum TCP Connections: 16 simultaneous clients
- UID Range (TCP Slave to Serial Master): 00–FF
- Operating Temperature: −10 °C to +65 °C
- Humidity: 0–90% non-condensing
- Dimensions: 151 mm (L) × 75 mm (W) × 26 mm (H)
- Weight: 395 g (with packaging)
4. Functionality
The TRP-C37MA functions as a gateway between Ethernet-based Modbus TCP networks and serial Modbus RTU/ASCII devices. It can operate in several modes:
- Direct IP Mode: Provides direct TCP/IP communication between Ethernet and serial devices.
- Virtual COM Mode: Creates a virtual serial port on a PC, mapping TCP/IP data to the serial interface.
- Paired Mode (Bridge Mode): Two TRP-C37MA units can form a transparent serial bridge over Ethernet.
Use Cases and Applications:
- Industrial automation systems integrating legacy serial Modbus devices into Ethernet networks.
- SCADA systems requiring remote access to Modbus RTU/ASCII sensors or controllers.
- Remote device monitoring and automatic restart of serial equipment.
- Multi-client data acquisition from a single serial device.
- Integration with Modscan32, Modbus Poll, CAS Modbus Scanner, and other Modbus utilities.
Compatibility:
- Fully compatible with Modbus TCP, Modbus RTU, and Modbus ASCII protocols.
- Works with Windows operating systems (98 through 10) via virtual COM drivers.
- Supports Ethernet and TCP/IP standards for seamless integration with existing networks.
5. Components & Accessories
Included Components:
- TRP-C37MA main unit
- User manual
- Software CD containing TRP-C37X DSM utility, Virtual COM driver, and TRPCOM test utility
Connectors:
- Ethernet Port: RJ45 (Auto-MDIX, 10/100 Mbps)
- RS-232 Port: DB-9 male connector
- RS-422/485 Port: Plug-in screw terminal block
- Digital I/O: D-sub 9-pin female connector
- Power Input: Screw terminal and 5.5 × 2.1 mm DC jack
Optional Accessories:
- External power adapter (DC 12–24 V)
- DIN-rail mounting kit (if applicable)
- Ethernet cable (straight or crossover)
6. Installation & Setup
Requirements:
- DC power supply (10–30 V)
- Ethernet connection to LAN or router
- Serial connection to Modbus RTU/ASCII device
Mounting Options:
- Desktop or panel installation
- Screw terminal wiring for industrial environments
Setup Steps:
1. Connect power to the DC jack or screw terminal. The PWR LED will blink when powered.
2. Connect the Ethernet cable to the LAN port. The LINK LED indicates network activity.
3. Connect the serial device via RS-232, RS-422, or RS-485 interface.
4. Configure the device using either:
- TRP-C37X DSM Utility: For network discovery, configuration, and firmware updates.
- Web-Based Utility: Access via browser using the device IP address (default 192.168.1.1).
5. Adjust DIP switches for desired mode:
- OFF/OFF: Direct IP mode (RTU)
- OFF/ON: Direct IP mode (ASCII)
- ON/OFF: Virtual COM or Paired mode
- ON/ON: Factory reset
LED Indicators:
- PWR: System ready (blinking)
- LINK: Ethernet connection active
- TX/RX: Serial data transmission/reception
- DI: Digital input status
- DO: Relay activation status
7. Performance & Capabilities
- Speed: Up to 921.6 Kbps serial communication rate
- Network Throughput: 10/100 Mbps Ethernet auto-detecting
- Connection Capacity: Up to 16 simultaneous TCP clients
- Relay Response: Adjustable from 100 ms to 25.5 seconds
- Heartbeat Interval: 5 seconds (TCP port 5300)
- Reliability:
- Auto-reconnect after power or network failure
- Watchdog timer for system recovery
- Power detection circuit prevents boot failure under unstable voltage
- Limitations:
- Maximum of 8 authorized host IPs for security
- Relay contact limited to 0.5 A at 125 V AC or 2 A at 30 V DC
8. Standards & Compliance
- Communication Standards:
- IEEE 802.3 (Ethernet 10/100 Mbps)
- Modbus TCP, Modbus RTU, Modbus ASCII
- TCP/IP, UDP, ICMP, ARP, DHCP, HTTP, Telnet protocols
- Electrical Protection:
- ±15 kV ESD protection on serial ports
- Surge, overcurrent, and overvoltage protection on RS-422/485 lines
- Environmental Standards:
- Operating temperature: −10 °C to +65 °C
- Humidity: 0–90% non-condensing
- Safety and Reliability:
- Industrial-grade design for continuous operation
- External watchdog and power detection circuits for fault recovery
9. Additional Information
Warranty & Support:
Trycom Technology provides standard product warranty and technical support for the TRP-C37MA. Firmware updates and configuration utilities are available through the manufacturer’s website.
Maintenance:
- Periodically check power and network connections.
- Use surge-protected power sources in industrial environments.
- Firmware can be updated via LAN using the DSM utility.
- Factory reset can be performed via DIP switches (1 and 2 ON/ON).
Software Tools:
- TRP-C37X DSM Utility: Device discovery, configuration, and firmware upgrade.
- Virtual COM Utility (VCOMM): Creates virtual serial ports for Windows systems.
- TRPCOM Utility: Diagnostic and loopback testing for RS-232/422/485 interfaces.
Firmware Updates:
Firmware can be upgraded through the LAN interface using the DSM utility. The process allows saving and restoring configuration files to EEPROM or external log files.
Comparison with TRP-C37A:
- TRP-C37A: Basic serial device server for TCP-to-serial data transmission only.
- TRP-C37MA: Enhanced model with Modbus protocol analysis, remote monitoring, and relay control functions.
Summary
The Trycom TRP-C37MA is a robust, feature-rich Modbus TCP to RTU/ASCII gateway engineered for industrial automation and remote monitoring applications. It bridges Ethernet and serial communication seamlessly, supports multiple operation modes, and provides advanced management through web and software utilities. With its wide power input range, industrial-grade protection, and flexible configuration options, the TRP-C37MA ensures reliable, secure, and efficient integration of serial Modbus devices into modern Ethernet-based control systems.
-
TRP-C37MA.pdf
PDF Catalog
-
C37MA_MANU.pdf
Manual
- DIN-RAIL-R - Din-Rail Mounting Adaptor